Wouldn't Switching US healthcare to a Canadian system lower the debt faster than anything else?

That’s going to be part of reducing payments to health care providers.

Combined with tort reform, rationing is the only realistic option to reduce health care inflation.

Actually, it does, in part, because Obamacare was going to reduce costs borne by the insured and incurred by the uninsured. As well as allow Medicare cuts. Or rather, increases in Medicare spending that are not as large as they might otherwise be.

Regards,
Shodan